topic Re: set-public-key AVB in i.MX Processors

set-public-key AVB

xuantambk — Wed, 08 Jan 2020 08:04:11 GMT

I am trying to set public key for board IMX8QuadXpus... Android Auto.

Android P9.0.0_2.3.3_AUTO-ER

After i set random key for rpmb

fastboot oem set-rpmb-random-key

I got error

AVB ReadVbmetaPublickey:256 Missing Public key file...

And then Device cannot boot to Bootloader any more.

Is there any way to boot device into bootloader mode?

I tried with u-boot-imx8qxp-mek-uuu.imx... load via usb gadge..

But this bootloader uboot dont support below command:

fastboot stage ${your-key-directory}/test_rsa4096_public.bin
fastboot oem set-public-key

--> Command not supported?

Yuri — Wed, 22 Jan 2020 09:02:48 GMT

Hello,

have You followed recommendations of "i.MX_Android_Security_User_Guide.pdf" in the NXP

Android doc package?

Have a great day,

Yuri

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xuantambk — Mon, 03 Feb 2020 10:07:31 GMT

I found solution..

You can do it by stop Uboot. by press any key....

then init fastboot service

fastboot q

fastboot stage ${your-key-directory}/test_rsa4096_public.bin
fastboot oem set-public-key